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cc65/cfg/apple2enh.cfg

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Adjusted comment.
2013-04-09 21:10:35 +00:00
# Default configuration (allowing for 3KB in LC)
Reworked and improved the SYMBOLS section. The old syntax (using symbol = value) is now gone, attributes are used instead. The SYMBOLS section does now support imports, so the linker config can be used to force symbols (and therefore module) imports. Evaluation of start address and size for memory areas has been delayed even further, so it is now possible to use the values from one memory area in the definition of the next one. git-svn-id: svn://svn.cc65.org/cc65/trunk@4851 b7a2c559-68d2-44c3-8de9-860c34a00d81
2010-11-12 14:17:35 +00:00
Separate the linker config for the apple2enh target from the ones for the apple2. git-svn-id: svn://svn.cc65.org/cc65/trunk@4235 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-09-26 16:12:02 +00:00
FEATURES {
STARTADDRESS: default = $0803;
}
- No more HEAP segment - RAM reduced by __STACKSIZE__ - Unified formatting git-svn-id: svn://svn.cc65.org/cc65/trunk@4633 b7a2c559-68d2-44c3-8de9-860c34a00d81
2010-03-21 17:10:17 +00:00
SYMBOLS {
Moved Apple EXEHDR to separate module (similiar to CBMs). git-svn-id: svn://svn.cc65.org/cc65/trunk@5708 b7a2c559-68d2-44c3-8de9-860c34a00d81
2012-06-10 21:05:51 +00:00
__EXEHDR__: type = import;
Moved run location of ONCE segment. Make the same changes to the Apple II that were done with https://github.com/cc65/cc65/commit/0ee9b2e446198746c3a05b142ecd00784becf727 to the C64. Notes: - The startup code deliberately doesn't make use of symbols defined for the LC segment as that segment is optional. - The <...>-asm.cfg configs move the segment BSS to an own memory area BSS although this doesn't seem necessary. However the benefit is that the size of the memeory area MAIN is identical to the number of bytes loaded from disk into RAM. To keep this an invariant for all Apple II configs allows to simplify the EXEHDR to just refer to the symbols defined for MAIN.
2016-03-17 20:07:19 +00:00
__STACKSIZE__: type = weak, value = $0800; # 2k stack
The Apple2 linker configs *-loader.cfg only differed in the presumed HIMEM from the default config. Rather have that value adjustable. git-svn-id: svn://svn.cc65.org/cc65/trunk@5728 b7a2c559-68d2-44c3-8de9-860c34a00d81
2012-06-16 22:48:45 +00:00
__HIMEM__: type = weak, value = $9600; # Presumed RAM end
The Apple2 linker configs basically cover two dimension of settings: 1. BIN vs. SYS vs. Loader 2. With Quit code vs. w/o Quit code vs. full LC Up two now these two dimensions were sort of folded into a number of useful combinations. However with the new asm config and the upcominger overlay config we end up with just to many configs. Therefore now the second dimension isn't expressed anymore as distinct config. Rather the user has to override __LCADDR__ and __LCSIZE__ in order use the Quite code area or the full LC. git-svn-id: svn://svn.cc65.org/cc65/trunk@5722 b7a2c559-68d2-44c3-8de9-860c34a00d81
2012-06-16 20:36:34 +00:00
__LCADDR__: type = weak, value = $D400; # Behind quit code
__LCSIZE__: type = weak, value = $0C00; # Rest of bank two
- No more HEAP segment - RAM reduced by __STACKSIZE__ - Unified formatting git-svn-id: svn://svn.cc65.org/cc65/trunk@4633 b7a2c559-68d2-44c3-8de9-860c34a00d81
2010-03-21 17:10:17 +00:00
}
Separate the linker config for the apple2enh target from the ones for the apple2. git-svn-id: svn://svn.cc65.org/cc65/trunk@4235 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-09-26 16:12:02 +00:00
MEMORY {
Moved run location of ONCE segment. Make the same changes to the Apple II that were done with https://github.com/cc65/cc65/commit/0ee9b2e446198746c3a05b142ecd00784becf727 to the C64. Notes: - The startup code deliberately doesn't make use of symbols defined for the LC segment as that segment is optional. - The <...>-asm.cfg configs move the segment BSS to an own memory area BSS although this doesn't seem necessary. However the benefit is that the size of the memeory area MAIN is identical to the number of bytes loaded from disk into RAM. To keep this an invariant for all Apple II configs allows to simplify the EXEHDR to just refer to the symbols defined for MAIN.
2016-03-17 20:07:19 +00:00
ZP: file = "", define = yes, start = $0080, size = $001A;
HEADER: file = %O, start = %S - 4, size = $0004;
MAIN: file = %O, define = yes, start = %S, size = __HIMEM__ - %S;
BSS: file = "", start = __ONCE_RUN__, size = __HIMEM__ - __STACKSIZE__ - __ONCE_RUN__;
LC: file = "", define = yes, start = __LCADDR__, size = __LCSIZE__;
Separate the linker config for the apple2enh target from the ones for the apple2. git-svn-id: svn://svn.cc65.org/cc65/trunk@4235 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-09-26 16:12:02 +00:00
}
SEGMENTS {
Moved run location of ONCE segment. Make the same changes to the Apple II that were done with https://github.com/cc65/cc65/commit/0ee9b2e446198746c3a05b142ecd00784becf727 to the C64. Notes: - The startup code deliberately doesn't make use of symbols defined for the LC segment as that segment is optional. - The <...>-asm.cfg configs move the segment BSS to an own memory area BSS although this doesn't seem necessary. However the benefit is that the size of the memeory area MAIN is identical to the number of bytes loaded from disk into RAM. To keep this an invariant for all Apple II configs allows to simplify the EXEHDR to just refer to the symbols defined for MAIN.
2016-03-17 20:07:19 +00:00
ZEROPAGE: load = ZP, type = zp;
Marked Apple II EXEHDR segment as optional. The docs say "Use -D __EXEHDR__=0 to omit the header." so it should work without generating a linker warning.
2018-02-02 13:46:57 +00:00
EXEHDR: load = HEADER, type = ro, optional = yes;
Moved run location of ONCE segment. Make the same changes to the Apple II that were done with https://github.com/cc65/cc65/commit/0ee9b2e446198746c3a05b142ecd00784becf727 to the C64. Notes: - The startup code deliberately doesn't make use of symbols defined for the LC segment as that segment is optional. - The <...>-asm.cfg configs move the segment BSS to an own memory area BSS although this doesn't seem necessary. However the benefit is that the size of the memeory area MAIN is identical to the number of bytes loaded from disk into RAM. To keep this an invariant for all Apple II configs allows to simplify the EXEHDR to just refer to the symbols defined for MAIN.
2016-03-17 20:07:19 +00:00
STARTUP: load = MAIN, type = ro;
LOWCODE: load = MAIN, type = ro, optional = yes;
CODE: load = MAIN, type = ro;
RODATA: load = MAIN, type = ro;
DATA: load = MAIN, type = rw;
INIT: load = MAIN, type = rw;
ONCE: load = MAIN, type = ro, define = yes;
LC: load = MAIN, run = LC, type = ro, optional = yes;
BSS: load = BSS, type = bss, define = yes;
Separate the linker config for the apple2enh target from the ones for the apple2. git-svn-id: svn://svn.cc65.org/cc65/trunk@4235 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-09-26 16:12:02 +00:00
}
FEATURES {
Just some beautification. git-svn-id: svn://svn.cc65.org/cc65/trunk@5984 b7a2c559-68d2-44c3-8de9-860c34a00d81
2013-02-12 20:55:19 +00:00
CONDES: type = constructor,
Separate the linker config for the apple2enh target from the ones for the apple2. git-svn-id: svn://svn.cc65.org/cc65/trunk@4235 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-09-26 16:12:02 +00:00
label = __CONSTRUCTOR_TABLE__,
Just some beautification. git-svn-id: svn://svn.cc65.org/cc65/trunk@5984 b7a2c559-68d2-44c3-8de9-860c34a00d81
2013-02-12 20:55:19 +00:00
count = __CONSTRUCTOR_COUNT__,
Renamed INITBSS to INIT and INIT to ONCE. The way we want to use the INITBSS segment - and especially the fact that it won't have the type bss on all ROM based targets - means that the name INITBSS is misleading. After all INIT is the best name from my perspective as it serves several purposes and therefore needs a rather generic name. Unfortunately this means that the current INIT segment needs to be renamed too. Looking for a short (ideally 4 letter) name I came up with ONCE as it contains all code (and data) accessed only once during initialization.
2016-03-06 20:26:22 +00:00
segment = ONCE;
Just some beautification. git-svn-id: svn://svn.cc65.org/cc65/trunk@5984 b7a2c559-68d2-44c3-8de9-860c34a00d81
2013-02-12 20:55:19 +00:00
CONDES: type = destructor,
Separate the linker config for the apple2enh target from the ones for the apple2. git-svn-id: svn://svn.cc65.org/cc65/trunk@4235 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-09-26 16:12:02 +00:00
label = __DESTRUCTOR_TABLE__,
Just some beautification. git-svn-id: svn://svn.cc65.org/cc65/trunk@5984 b7a2c559-68d2-44c3-8de9-860c34a00d81
2013-02-12 20:55:19 +00:00
count = __DESTRUCTOR_COUNT__,
segment = RODATA;
CONDES: type = interruptor,
Separate the linker config for the apple2enh target from the ones for the apple2. git-svn-id: svn://svn.cc65.org/cc65/trunk@4235 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-09-26 16:12:02 +00:00
label = __INTERRUPTOR_TABLE__,
Have the callirq module export __CALLIRQ__ and changed all config files so this symbol is a forced import for all interruptors. git-svn-id: svn://svn.cc65.org/cc65/trunk@5902 b7a2c559-68d2-44c3-8de9-860c34a00d81
2012-11-03 21:59:15 +00:00
count = __INTERRUPTOR_COUNT__,
Just some beautification. git-svn-id: svn://svn.cc65.org/cc65/trunk@5984 b7a2c559-68d2-44c3-8de9-860c34a00d81
2013-02-12 20:55:19 +00:00
segment = RODATA,
Have the callirq module export __CALLIRQ__ and changed all config files so this symbol is a forced import for all interruptors. git-svn-id: svn://svn.cc65.org/cc65/trunk@5902 b7a2c559-68d2-44c3-8de9-860c34a00d81
2012-11-03 21:59:15 +00:00
import = __CALLIRQ__;
Separate the linker config for the apple2enh target from the ones for the apple2. git-svn-id: svn://svn.cc65.org/cc65/trunk@4235 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-09-26 16:12:02 +00:00
}
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